Web Security

17 chapters on securing web applications — from preventing injection attacks to a complete secure development lifecycle.

Preventing Vulnerabilities

1. SQL Injection Prevention — Parameterized queries, ORM usage, and input validation
2. XSS Prevention — Output encoding, Content Security Policy, and DOM security
3. Command Injection Prevention — Safely calling system commands
4. Path Traversal Prevention — Restricting file access and path validation
5. SSTI Prevention — Securely configuring template engines
6. XXE Prevention — Securing XML parsers against external entities
7. SSRF Prevention — Restricting and filtering server-side requests
8. Deserialization Prevention — Preventing unsafe object deserialization
9. Client-Side Security — Blocking browser-side attack vectors

Hardening & Architecture

1. Authentication Hardening — Password policy, MFA, and session security
2. Security Headers — HTTP headers that protect browsers
3. Input Validation & Output Encoding — Layered defense against injection
4. TLS/SSL Configuration — Setting up encryption correctly
5. API Security — Securing REST and GraphQL APIs
6. File Upload Hardening — Safely processing file uploads
7. OAuth & OpenID Connect — Correctly implementing authentication protocols
8. Secure Development Lifecycle — Building security into every phase of development